It stated that it's using pydy, would like to know if there is any more of this.

Jason K. Moore

@moorepants

@extraymond looks interesting, didn't know about it, seems you can't download it without an account on that website

extraymond

@extraymond

@moorepants I've been looking for reference files or citing about this document, but nothing but the one on scribd.com can be found.

yibochallinger

@yibochallinger

I followed pydy tutorial human standing example hoping to create a visualization for a quadcopter but pydy.viz doesn't display any objects.

Renato Marinho

@renatomarinho

This message was deleted

Renato Marinho

@renatomarinho

This message was deleted

Sam Brockie

@brocksam

Hi. What's the simplest way to extract numerical values for Derivative(u, t) from a pydy System object following running System.integrate()? I know System.integrate() returns a np.ndarray with each column corresponding to the vector of q and u states for the system. But if one derives the EoM with auxiliary speeds to bring into evidence noncontributing forces then these can be functions of the time derivatives of the speeds. Or is there a more efficient way to numerically evaluate these noncontributing forces from the auxiliary equations? Many thanks, Sam

Jason K. Moore

@moorepants

The system object currently does not track anything extra. You can lambdify the expressions you want to calculate and then provide the results from system.integrate() to the function generated from lambdify.

extraymond

@extraymond

@yibochallinger If your using jupyter lab, I think the widget is coming out like what it does with jupyter notebook.

Foad Sojoodi Farimani

@fsfarimani_twitter

Hey guys, I'm very new to PyDy. I was wondering if there are any examples for 1. 3D mechanisms 2. parallel / closed mechanisms? Thanks for your help in advance

Foad Sojoodi Farimani

@fsfarimani_twitter

Hi everybody, I opened a new issue pydy/pydy#412 I would appreciate if you could help me find a solution. Thanks in advance.

Foad Sojoodi Farimani

@fsfarimani_twitter

the link to "Inverted pendulum model of a standing human" on this page seems to be broken as I have reported pydy/pydy#413

Foad Sojoodi Farimani

@fsfarimani_twitter

Hi guys, I would appreciate if you could help me with this question from Kane 1985 book.